Dr. Who inspired. It's the Tardis key. Get it? I love love LOVE Dr. Who. It's the best, maybe you should watch it sometime. I like the bokeh in this picture and the picture in general. One of my better ones, if I do say so myself.
Firstly, I love the idea of this photo and the blur filter you have used. The colours make it look like a very valued photo. By the looks of this photo you have a very professional editing programme and camera.
Secondly, The effect you have used in the background goes amazing with the gold of the key and compliments it's value and preciousness.
Overall, the photo is not scruffy or out of lines and the sub-focus looks like it has been applied very carefully. I love this photo- please do more photography like this because you are very talented.